[INFO] fetching crate darts 0.1.0...
[INFO] checking darts-0.1.0 against master#c5af0610196bc39c44e54f1e08bd9149bdc66929 for pr-118120
[INFO] extracting crate darts 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate darts 0.1.0 on toolchain c5af0610196bc39c44e54f1e08bd9149bdc66929
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c5af0610196bc39c44e54f1e08bd9149bdc66929" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darts 0.1.0
[INFO] finished tweaking crates.io crate darts 0.1.0
[INFO] tweaked toml for crates.io crate darts 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c5af0610196bc39c44e54f1e08bd9149bdc66929" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c5af0610196bc39c44e54f1e08bd9149bdc66929" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: failed to parse manifest at `/workspace/builds/worker-4-tc1/source/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   can't find `darts_benchmark` bench at `benches/darts_benchmark.rs` or `benches/darts_benchmark/main.rs`. Please specify bench.path if you want to use a non-default path.
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking darts-0.1.0 against try#a832c07a2bcc7587230eb0706f83d1d602ae5c2b for pr-118120
[INFO] extracting crate darts 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate darts 0.1.0 on toolchain a832c07a2bcc7587230eb0706f83d1d602ae5c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darts 0.1.0
[INFO] finished tweaking crates.io crate darts 0.1.0
[INFO] tweaked toml for crates.io crate darts 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: failed to parse manifest at `/workspace/builds/worker-4-tc2/source/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   can't find `darts_benchmark` bench at `benches/darts_benchmark.rs` or `benches/darts_benchmark/main.rs`. Please specify bench.path if you want to use a non-default path.
[INFO] checking darts-0.1.0 against try#a832c07a2bcc7587230eb0706f83d1d602ae5c2b for pr-118120
[INFO] extracting crate darts 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate darts 0.1.0 on toolchain a832c07a2bcc7587230eb0706f83d1d602ae5c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darts 0.1.0
[INFO] finished tweaking crates.io crate darts 0.1.0
[INFO] tweaked toml for crates.io crate darts 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: failed to parse manifest at `/workspace/builds/worker-4-tc2/source/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   can't find `darts_benchmark` bench at `benches/darts_benchmark.rs` or `benches/darts_benchmark/main.rs`. Please specify bench.path if you want to use a non-default path.
[INFO] checking darts-0.1.0 against try#a832c07a2bcc7587230eb0706f83d1d602ae5c2b for pr-118120
[INFO] extracting crate darts 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate darts 0.1.0 on toolchain a832c07a2bcc7587230eb0706f83d1d602ae5c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darts 0.1.0
[INFO] finished tweaking crates.io crate darts 0.1.0
[INFO] tweaked toml for crates.io crate darts 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: failed to parse manifest at `/workspace/builds/worker-4-tc2/source/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   can't find `darts_benchmark` bench at `benches/darts_benchmark.rs` or `benches/darts_benchmark/main.rs`. Please specify bench.path if you want to use a non-default path.
[INFO] checking darts-0.1.0 against try#a832c07a2bcc7587230eb0706f83d1d602ae5c2b for pr-118120
[INFO] extracting crate darts 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate darts 0.1.0 on toolchain a832c07a2bcc7587230eb0706f83d1d602ae5c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darts 0.1.0
[INFO] finished tweaking crates.io crate darts 0.1.0
[INFO] tweaked toml for crates.io crate darts 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: failed to parse manifest at `/workspace/builds/worker-4-tc2/source/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   can't find `darts_benchmark` bench at `benches/darts_benchmark.rs` or `benches/darts_benchmark/main.rs`. Please specify bench.path if you want to use a non-default path.
[INFO] checking darts-0.1.0 against try#a832c07a2bcc7587230eb0706f83d1d602ae5c2b for pr-118120
[INFO] extracting crate darts 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate darts 0.1.0 on toolchain a832c07a2bcc7587230eb0706f83d1d602ae5c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darts 0.1.0
[INFO] finished tweaking crates.io crate darts 0.1.0
[INFO] tweaked toml for crates.io crate darts 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: failed to parse manifest at `/workspace/builds/worker-4-tc2/source/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   can't find `darts_benchmark` bench at `benches/darts_benchmark.rs` or `benches/darts_benchmark/main.rs`. Please specify bench.path if you want to use a non-default path.
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.